@braggss Ok I've figured out the fix. Go to mods like Leocg has pointed out. This is happening bcz you've installed GX Boy mod. So under GX Boy, just undo "shaders" and that will hopefully solve it.

@leocg I don't know what mod that is... if you can redirect me to how to disable this that would be helpful.

How do I get rid of these tiles on screen?